/Engine/Source/Editor/BlueprintGraph/Classes/BlueprintTypePromotion.h
Get the "Primitive Promotion Table" which represents what base Pin types can be promoted to others.
Const pointer to the primitive promotion table
static const [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), [TArray](API\Runtime\Core\Containers\TArray)< [FName](API\Runtime\Core\UObject\FName) > > *const GetPrimitivePromotionTable()